8989765573 has 2 divisors, whose sum is σ = 8989765574. Its totient is φ = 8989765572.

The previous prime is 8989765571. The next prime is 8989765613. The reversal of 8989765573 is 3755679898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5900851489 + 3088914084 = 76817^2 + 55578^2 .

It is a cyclic number.

It is not a de Polignac number, because 8989765573 - 2¹ = 8989765571 is a prime.

Together with 8989765571, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 8989765499 and 8989765508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8989765571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4494882786 + 4494882787.

It is an arithmetic number, because the mean of its divisors is an integer number (4494882787).

Almost surely, 2^8989765573 is an apocalyptic number.

It is an amenable number.

8989765573 is a deficient number, since it is larger than the sum of its proper divisors (1).

8989765573 is an equidigital number, since it uses as much as digits as its factorization.

8989765573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114307200, while the sum is 67.

The square root of 8989765573 is about 94814.3742952512. The cubic root of 8989765573 is about 2079.2950622891.

The spelling of 8989765573 in words is "eight billion, nine hundred eighty-nine million, seven hundred sixty-five thousand, five hundred seventy-three".